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Estimation of Control Forces of Spring-tab Ailerons from Wind-tunnel Data

Owen J. Deters

出版	National Advisory Committee for Aeronautics, 1947
URL	http://books.google.com.hk/books?id=6E-9tgAACAAJ&hl=&source=gbs_api

註釋

A method is presentedfor estimating the control forces of spring-tab ailerons from nonlinear wind-tunnel data. The method applies to the most general form of spring-tab system, the geared spring-tab. The two principal arrangements of the ailerons and spring unit are considered. These arrangements are (1) an arragnement wherein the ailerons are interconnected and employ a central spring unit and (2) an arrangement with no interconnection between the ailerons with individual preloaded spring units for each aileron. Static wind-tunneldata consistig of both aileron and tab hinge-moment coefficients are required as well as the characteristics of the linkage system.